@Override
public Object apply(WarpScriptStack stack) throws WarpScriptException {
Object o = stack.pop();
JsonSerializer parser = BOON_SERIALIZER_FACTORY.create();
//
// Only allow the serialization of simple lists and maps, otherwise JSON might
// expose internals
//
if (o instanceof List) {
for (Object elt : (List) o) {
if (!(elt instanceof Number) && !(elt instanceof String) && !(elt instanceof Boolean)) {
throw new WarpScriptException(
getName() + " can only handle numeric, boolean and string types.");
}
}
} else if (o instanceof Map) {
for (Entry<Object, Object> entry : ((Map<Object, Object>) o).entrySet()) {
Object elt = entry.getKey();
if (!(elt instanceof Number) && !(elt instanceof String) && !(elt instanceof Boolean)) {
throw new WarpScriptException(
getName() + " can only handle numeric, boolean and string types.");
}
elt = entry.getValue();
if (!(elt instanceof Number) && !(elt instanceof String) && !(elt instanceof Boolean)) {
throw new WarpScriptException(
getName() + " can only handle numeric, boolean and string types.");
}
}
} else {
throw new WarpScriptException(getName() + " can only handle simple lists/maps.");
}
String json = parser.serialize(o).toString();
stack.push(json);
return stack;
}
@Override
public Object serialize(Object data) {
return serializer.serialize(data);
}